Socket Adapter 1/2" 20mm Hartsson 17C320Z — 12-point

Hartsson 17C320Z is a 12-point 1/2" socket adapter with a 20 mm socket size, designed for use with compatible 1/2" drive ratchets and torque tools. The adapter converts the tool interface to accept 20 mm fasteners and provides a 12-point engagement pattern that allows easier alignment on hexagonal heads in confined spaces. It is intended for general mechanical work, maintenance tasks and workshop applications where a reliable 20 mm connection is required.

Advantages

The 12-point geometry permits multiple indexing positions for faster engagement and reduced need to reposition the driver. Constructed for compatibility with standard 1/2" drive tools, the adapter ensures secure fitment and stable torque transfer to the fastener. Its compact design facilitates access in tight or recessed areas while maintaining the strength needed for routine automotive and industrial use.

Suitable for

• Automotive repair and component replacement
• General mechanical assembly and disassembly
• Workshop maintenance and equipment servicing
• Use with 1/2" drive ratchets and torque wrenches when a 20 mm socket is required

Key specifications

• Drive interface: 1/2" drive
• Socket size: 20 mm
• Point count: 12-point engagement
• Compatibility: fits standard 1/2" drive tools and accessories
• Application: manual and torque-controlled fastening tasks

How to use

Attach the adapter securely to a compatible 1/2" drive ratchet or torque wrench until it clicks or seats fully. Place the 12-point 20 mm end over the fastener head, ensuring proper engagement before applying torque. Operate the ratchet or wrench within the tool's rated torque range to avoid overloading the adapter. After use, detach the adapter and store in a dry, clean toolbox or socket organizer to prevent corrosion and damage.

Usage recommendations

Use the adapter only with tools and fasteners rated for the required torque. Avoid excessive impact loading unless the adapter is specified for impact use. Regularly inspect for wear or rounding of the 12 points and replace if deformation is observed.